Improved pipeline reversing valve

Abstract

The utility model discloses an improved pipeline reversing valve which comprises an outer shell, drainage pipes symmetrically penetrate through the outer side face of the outer shell, a top shell is fixedly connected to the upper surface of the outer shell, a limiting ring is fixedly connected to the inner wall of the outer shell, a reversing mechanism is rotationally connected to an inner cavity of the limiting ring, and the reversing mechanism comprises a sliding rod. The sliding rod is slidably connected to an inner cavity of the limiting ring, a limiting box is fixedly connected to the end of the sliding rod, a sliding ball is slidably connected to an inner cavity of the limiting box, a fixing block is fixedly connected to the end, located on the outer surface of the limiting box, of the sliding ball, and a supporting plate is fixedly connected to the side, away from the sliding ball, of the fixing block. And the end part of the supporting plate is fixedly connected with a sealing plate. The improved pipeline reversing valve has the effect of preventing water flow from leaking when the water flow circulates at a high speed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a reversing valve technical field especially relates to an improved pipeline reversing valve. BACKGROUND

[0002] The reversing valve is a very key control element in the hydraulic and pneumatic system. It is mainly composed of a valve body, a valve core and a device for driving the valve core to act. The valve body is provided with a plurality of interfaces connected with different pipelines to realize the control of the flow direction of liquid or gas in the system. The valve core can be in different working positions under the action of the driving device, and there are many types such as two-position three-way and three-position four-way. For example, in the working device hydraulic system of the hydraulic excavator, the reversing valve precisely controls the flow direction of the hydraulic oil to the arm cylinder, the stick cylinder and the bucket cylinder by switching the position of the valve core, so as to realize various actions such as digging, lifting and unloading.

[0003] The utility model discloses an improved reversing valve, including valve body, the symmetry of transparent window is embedded on valve body circumferential outer wall, the center position of valve body bottom embeds the air inlet pipe, the symmetry of shunt pipe is still embedded on valve body circumferential outer wall, the upper of valve body is equipped with sealing cover, the first fastening bolt is equipped in the first perforation, the first screw hole is still equipped with in the position of valve body and the first perforation corresponds, the center position of sealing cover upper surface still is equipped with rotary column, the rotary column top is equipped with the pointing needle, the rotary column bottom is equipped with the obturator, sealing cover upper surface center position still installs fixed column, this improved reversing valve, install transparent window on valve body, it is convenient for real-time observation to inside dredging condition, sealing cover is convenient for combination fixed use under the cooperation of the first fastening bolt, is helpful to manual opening, carries out cleaning use to inside, the pointing needle on rotary column and obturator correspond, it is convenient for knowing the position of obturator, carries out switching pipeline use.

[0004] The following problems still exist in the above-mentioned application:

[0005] When the water flow is flowing at high speed, a certain leakage will occur. UTILITY MODEL CONTENTS

[0006] The utility model discloses an improved pipeline reversing valve, which aims to solve the technical problem of a certain leakage when the water flow is flowing at high speed.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] The utility model provides a kind of improved pipeline reversing valve, including shell, the outer side of the shell is symmetrically penetrated with drain pipe, the upper surface of the shell is fixedly connected with top shell, the inner wall of the shell is fixedly connected with limiting ring, the inner cavity of the limiting ring is rotatably connected with reversing mechanism, the reversing mechanism includes sliding rod, the sliding rod is slidably connected at the inner cavity of limiting ring, the end of the sliding rod is fixedly connected with limiting box, the inner cavity of the limiting box is slidably connected with sliding ball, the outer surface of the sliding ball is fixedly connected with fixed block at one end, the side of the fixed block away from sliding ball is fixedly connected with support plate, the end of the support plate is fixedly connected with sealing plate.

[0009] By setting drain pipe, water in the inner cavity of shell can be discharged, by setting limiting ring, reversing mechanism can be limited, so that reversing mechanism can produce stable rotation in the inner cavity of shell, by setting reversing mechanism, drain pipe can be closed by rotating personnel, so as to change the discharge direction of water flow in the inner cavity of shell, by setting sliding rod, stable sliding can be produced in the inner cavity of limiting ring, so that limiting box produces stable rotation, by setting sealing plate, the opening of drain pipe can be closed and blocked.

[0010] In a preferred embodiment, the inner wall of the top shell is fixedly connected with a limiting ring, the inner cavity of the limiting ring is rotatably connected with a rotating column, the rotating column is fixedly connected to the upper surface of the limiting box, the top end of the rotating column is fixedly connected with a rotating wheel, the number of the limiting rings is two, and the two limiting rings are fixedly connected to the top and bottom of the inner wall of the shell.

[0011] By setting the limiting ring, the rotating column can be limited, and the limiting box can be stably rotated.

[0012] In a preferred embodiment, the opposite surfaces of the limiting box are fixedly connected with a limiting rod, the outer surface of the limiting rod is slidably connected with a pressing sleeve, the outer surface of the limiting rod is sleeved with a first spring, the top end of the first spring is fixedly connected to the lower surface of the pressing sleeve, the outer surface of the sealing plate is fixedly connected with a sealing gasket, the sealing gasket is pressed and matched with the opening of the drain pipe, the outer surface of the sliding ball is fixedly connected with a second spring, the end of the second spring is fixedly connected to the inner wall of the limiting box, the side of the sealing plate away from the sealing gasket is fixedly connected with a fixed plate, the side of the fixed plate away from the sealing plate is fixedly connected with an inclined frame, and the pressing sleeve is pressed and matched with the inclined frame.

[0013] By setting the limiting rod, the extrusion sleeve can be limited, so that the extrusion sleeve generates vertical up-down movement effect on its outer surface, by setting the first spring, the rebound can be generated after the extrusion sleeve moves upward, by setting the sealing gasket, the sealing property between the sealing plate and the drain pipe can be increased, by setting the second spring, the sliding ball can move in the limiting box, and then the sealing plate moves to the direction of the drain pipe, by setting the inclined frame, the inclined frame can be extruded when the extrusion sleeve moves upward, and then the sliding ball moves.

[0014] As can be known from the above, compared with the prior art, the improved pipeline reversing valve has the following improvements and advantages.

[0015] Firstly, by setting the drain pipe, the water in the inner cavity of the shell can be discharged, and by setting the limiting ring, the reversing mechanism can be limited, so that the reversing mechanism can generate stable rotation in the inner cavity of the shell.

[0016] Secondly, by setting the reversing mechanism, the drain pipe can be closed when the operator rotates, so that the discharge direction of the water flow in the inner cavity of the shell is changed, by setting the sliding rod, stable sliding can be generated in the inner cavity of the limiting ring, and then the limiting box generates stable rotation, and by setting the sealing plate, the opening of the drain pipe can be closed and blocked. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure of the improved pipeline reversing valve is shown in the structure of the improved pipeline reversing valve.

[0018] Figure 2 The structure of the improved pipeline reversing valve is shown in the structure of the improved pipeline reversing valve.

[0019] Figure 3 The structure of the improved pipeline reversing valve is shown in the structure of the improved pipeline reversing valve.

[0020] Figure 4 The structure of the improved pipeline reversing valve is shown in the structure of the improved pipeline reversing valve.

[0021] In the drawings: 1, shell; 2, drain pipe; 3, top shell; 4, limiting ring; 5, rotating column; 6, rotating wheel; 7, reversing mechanism; 8, limiting ring; 71, limiting box; 72, sliding rod; 73, limiting rod; 74, extrusion sleeve; 75, first spring; 76, sliding ball; 77, second spring; 78, fixed block; 79, support plate; 710, sealing plate; 711, sealing gasket; 712, fixed plate; 713, inclined frame. DETAILED DESCRIPTION

[0022] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] In the description of the present utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model.

[0024] The improved pipeline reversing valve disclosed by the present utility model is mainly applied to the scene of generating certain leakage when water flows at high speed.

[0025] With reference to Figure 1 Figure 4 An improved pipeline reversing valve, comprising a shell 1, a drain pipe 2 is symmetrically penetrated through the outer side of the shell 1, a top shell 3 is fixedly connected to the upper surface of the shell 1, a limiting ring 8 is fixedly connected to the inner wall of the shell 1, a reversing mechanism 7 is rotatably connected to the inner cavity of the limiting ring 8, the reversing mechanism 7 comprises a sliding rod 72, the sliding rod 72 is slidingly connected to the inner cavity of the limiting ring 8, a limiting box 71 is fixedly connected to the end of the sliding rod 72, a sliding ball 76 is slidingly connected to the inner cavity of the limiting box 71, a fixed block 78 is fixedly connected to one end of the outer surface of the limiting box 71, a support plate 79 is fixedly connected to the side away from the sliding ball 76 of the fixed block 78, a sealing plate 710 is fixedly connected to the end of the support plate 79, by arranging the drain pipe 2, the water in the inner cavity of the shell 1 can be discharged, by arranging the limiting ring 8, the reversing mechanism 7 can be limited, so that the reversing mechanism 7 can produce stable rotation in the inner cavity of the shell 1, by arranging the reversing mechanism 7, the drain pipe 2 can be closed by the rotation of the operator, so as to change the discharge direction of the water flow in the inner cavity of the shell 1, by arranging the sliding rod 72, stable sliding can be produced in the inner cavity of the limiting ring 8, so as to make the limiting box 71 produce stable rotation, by arranging the sealing plate 710, the opening of the drain pipe 2 can be closed and blocked.

[0026] With reference to Figure 1 and Figure 2 ​In one preferred embodiment, the inner wall of the top shell 3 is fixedly connected with a limiting ring 4, the inner cavity of the limiting ring 4 is rotatably connected with a rotating column 5, the rotating column 5 is fixedly connected with the upper surface of the limiting box 71, the top end of the rotating column 5 is fixedly connected with a rotating wheel 6, the limiting ring 4 can limit the rotating column 5, so that the limiting box 71 rotates stably, and the two limiting rings 8 are fixedly connected with the top and bottom of the inner wall of the shell 1.

[0027] Referring to Figure 1 , Figure 3 and Figure 4 In one preferred embodiment, the opposite surfaces of the limiting box 71 are fixedly connected with a limiting rod 73, the outer surface of the limiting rod 73 is slidably connected with a pressing sleeve 74, the outer surface of the limiting rod 73 is sleeved with a first spring 75, the top end of the first spring 75 is fixedly connected with the lower surface of the pressing sleeve 74, the limiting rod 73 can limit the pressing sleeve 74, so that the pressing sleeve 74 moves vertically up and down on its outer surface, the first spring 75 can rebound after the pressing sleeve 74 moves upward, the outer surface of the sealing plate 710 is fixedly connected with a sealing gasket 711, the sealing gasket 711 is in pressing fit with the opening of the drain pipe 2, the sealing gasket 711 can increase the sealing between the sealing plate 710 and the drain pipe 2, the outer surface of the sliding ball 76 is fixedly connected with a second spring 77, the end of the second spring 77 is fixedly connected with the inner wall of the limiting box 71, the second spring 77 can move the sliding ball 76 in the limiting box 71, so that the sealing plate 710 moves towards the drain pipe 2, the side of the sealing plate 710 away from the sealing gasket 711 is fixedly connected with a fixed plate 712, the side of the fixed plate 712 away from the sealing plate 710 is fixedly connected with an inclined frame 713, the pressing sleeve 74 is in pressing fit with the inclined frame 713, the inclined frame 713 is pressed when the pressing sleeve 74 moves upward, so that the sliding ball 76 moves.

[0028] Working principle: in use, the operator connects the bottom end of the shell 1 with the water pipe, then rotates the rotating wheel 6, so that the limiting box 71 rotates, when the water flow enters from the bottom of the shell 1, the water flow will press the pressing sleeve 74, so that the pressing sleeve 74 presses the inclined frame 713, the sealing plate 710 moves when pressed, so that the sealing plate 710 closes the drain pipe 2, so as to change the direction of drainage, and the sealing plate 710 tightly blocks the drain pipe 2 under the impact of the water flow.

[0029] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. According to the technical solution and the inventive concept of the present application, equivalent replacement or change should be covered in the protection scope of the present application.

Claims

1. An improved pipe reversing valve comprising a housing (1) having a drain pipe (2) symmetrically penetrating through the outer side thereof, characterized in that, The upper surface of the shell (1) is fixedly connected with a top shell (3), the inner wall of the shell (1) is fixedly connected with a limiting ring (8), the inner cavity of the limiting ring (8) is rotatably connected with a reversing mechanism (7), the reversing mechanism (7) comprises a sliding rod (72), the sliding rod (72) is slidably connected at the inner cavity of the limiting ring (8), the end of the sliding rod (72) is fixedly connected with a limiting box (71), the inner cavity of the limiting box (71) is slidably connected with a sliding ball (76), the sliding ball (76) is fixedly connected with a fixed block (78) at one end of the outer surface of the limiting box (71), the side away from the sliding ball (76) of the fixed block (78) is fixedly connected with a support plate (79), the end of the support plate (79) is fixedly connected with a sealing plate (710).

2. The improved pipe reversing valve according to claim 1, wherein The inner wall of the top shell (3) is fixedly connected with a limiting ring (4), the inner cavity of the limiting ring (4) is rotatably connected with a rotating column (5), the top end of the rotating column (5) is fixedly connected with a rotating wheel (6).

3. The improved pipe reversing valve according to claim 1, wherein The number of the limiting ring (8) is two, and the two limiting rings (8) are fixedly connected at the top and bottom of the inner wall of the shell (1) respectively.

4. The improved pipe reversing valve according to claim 1, wherein The opposite surfaces of the limiting box (71) are fixedly connected with a limiting rod (73), the outer surface of the limiting rod (73) is slidably connected with a extrusion sleeve (74), the outer surface of the limiting rod (73) is sleeved with a first spring (75), the top end of the first spring (75) is fixedly connected with the lower surface of the extrusion sleeve (74).

5. The improved pipe reversing valve according to claim 4, wherein The outer surface of the sealing plate (710) is fixedly connected with a sealing gasket (711), the sealing gasket (711) is extrusion-fitted with the opening of the drain pipe (2).

6. The improved pipe reversing valve according to claim 5, wherein The outer surface of the sliding ball (76) is fixedly connected with a second spring (77), the end of the second spring (77) is fixedly connected at the inner wall of the limiting box (71).

7. The improved pipe reversing valve according to claim 6, wherein The side away from the sealing gasket (711) of the sealing plate (710) is fixedly connected with a fixed plate (712), the side away from the sealing plate (710) of the fixed plate (712) is fixedly connected with an inclined frame (713), the extrusion sleeve (74) is extrusion-fitted with the inclined frame (713).

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